Costus speciosus
絹毛鳶尾
Costus speciosus (J. König) Smith
名彙資訊
特徵描述
典藏標本
數位照片
分布位置
相關資訊
名彙資訊
學名發表文獻
Smith, Transactions of the Linnean Society of London 1: 249. 1791. (Trans. Linn. Soc. London)
台灣首次記錄發表文獻
Henry, A List of Plants from Formosa 95. 1895. (List Pl. Formos.)
異名
-
Costus formosanus NakaiNakai, Journal of Japanese Botany 17(4): 199. 1947. (J. Jpn. Bot.)
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Costus speciosus (J. König) Smith var. formosanus (Nakai) YingYing, Quarterly journal of Chinese forestry 21(2): 117. 1988. (Quart. J. Chin. For.)
各語言俗名
-
中閉鞘薑.
-
日きぬげほざきあやめ.
參考文獻
-
Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)
特徵描述
生活型
herb
形態特徵
- Rhizome tuberous. Stem 1-2 m tall, bearing 2 or 3 branches in age; upper stem leafy.
- Leaf sheaths tubular, 4 cm long, margin hairy; petiole 5-7 mm long, with short hairs; blade 23 cm long by 5 cm wide, ovate, apex acuminate, base narrowly rounded, dark green, glabrous or finely hairy; midrib pale, grooved, finely hairy toward below.
- Inflorescence a terminal, capitate spike. Peduncle curved. Bracts ovate, acute, 1.5 cm long, green tinged with red, densely hairy, margin ciliate; bracteole below each flower 1, 1 cm long, keeled. Calyx longer than bract, 2 cm long, ovary 3-lobed, lateral lobes keeled, margins ciliate; calyx tube shorter than calyx, red after flowering; ovary flattened, 8 mm wide; corolla tube shorter than calyx, faintly pinkish; labellum curved, trumpet shaped, edges overlapping, 5 cm long, with a cream colored median band, band with yellow hairs; stamen filament flattened, 2.5 mm long by 1.5 cm wide, yellow at apex, hairy abaxially.
- Fruit bright red, dehiscing loculicidally. Seeds black, with fleshy white aril, all in one group.
分布
- 世界 : Indo-Malaysia, Java, the Philippines, Hainan.
引證標本
NANTO: Chichi, Moo 1431. CHIAYI: Juili, Moo 1356. TAINAN: Kuantzeling, Moo 129; Wushantou, Moo 2103.
參考文獻
典藏標本
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